From ae86c587b5b53da4f7859f236f6c22ff9941cff9 Mon Sep 17 00:00:00 2001 From: Aniket Nagarnaik Date: Thu, 2 Jul 2015 06:07:02 -0700 Subject: [PATCH] mwifiex: fix for p2p broken link This patch fixes following issues in p2p code paths. 1) bss role, bss type and connection type was not set correctly for p2p GO and p2p client at couple of places. 2) Driver appends a proprietary header to management frames which will be parsed by our firmware. Later while informing TX status to cfg80211, modified frame buffer was passed to cfg80211_mgmt_tx_status() instead of original one. Signed-off-by: Aniket Nagarnaik Signed-off-by: Amitkumar Karwar Signed-off-by: Kalle Valo --- drivers/net/wireless/mwifiex/cfg80211.c | 5 ++++- drivers/net/wireless/mwifiex/sta_cmd.c | 6 ++++-- drivers/net/wireless/mwifiex/txrx.c | 22 +++++++++++++++++++++- 3 files changed, 29 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c index 69ee6dbafd61..d4b327752a5e 100644 --- a/drivers/net/wireless/mwifiex/cfg80211.c +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -831,10 +831,13 @@ mwifiex_init_new_priv_params(struct mwifiex_private *priv, priv->bss_type = MWIFIEX_BSS_TYPE_STA; break; case NL80211_IFTYPE_P2P_CLIENT: - case NL80211_IFTYPE_P2P_GO: priv->bss_role = MWIFIEX_BSS_ROLE_STA; priv->bss_type = MWIFIEX_BSS_TYPE_P2P; break; + case NL80211_IFTYPE_P2P_GO: + priv->bss_role = MWIFIEX_BSS_ROLE_UAP; + priv->bss_type = MWIFIEX_BSS_TYPE_P2P; + break; case NL80211_IFTYPE_AP: priv->bss_type = MWIFIEX_BSS_TYPE_UAP; priv->bss_role = MWIFIEX_BSS_ROLE_UAP; diff --git a/drivers/net/wireless/mwifiex/sta_cmd.c b/drivers/net/wireless/mwifiex/sta_cmd.c index 36cb6bdbe49b..a49a80dd773e 100644 --- a/drivers/net/wireless/mwifiex/sta_cmd.c +++ b/drivers/net/wireless/mwifiex/sta_cmd.c @@ -1997,10 +1997,12 @@ int mwifiex_sta_prepare_cmd(struct mwifiex_private *priv, uint16_t cmd_no, if (priv->bss_mode == NL80211_IFTYPE_ADHOC) cmd_ptr->params.bss_mode.con_type = CONNECTION_TYPE_ADHOC; - else if (priv->bss_mode == NL80211_IFTYPE_STATION) + else if (priv->bss_mode == NL80211_IFTYPE_STATION || + priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) cmd_ptr->params.bss_mode.con_type = CONNECTION_TYPE_INFRA; - else if (priv->bss_mode == NL80211_IFTYPE_AP) + else if (priv->bss_mode == NL80211_IFTYPE_AP || + priv->bss_mode == NL80211_IFTYPE_P2P_GO) cmd_ptr->params.bss_mode.con_type = CONNECTION_TYPE_AP; cmd_ptr->size = cpu_to_le16(sizeof(struct host_cmd_ds_set_bss_mode) + S_DS_GEN); diff --git a/drivers/net/wireless/mwifiex/txrx.c b/drivers/net/wireless/mwifiex/txrx.c index 5ed9b794053e..8b1e5b5d47fe 100644 --- a/drivers/net/wireless/mwifiex/txrx.c +++ b/drivers/net/wireless/mwifiex/txrx.c @@ -370,8 +370,28 @@ void mwifiex_parse_tx_status_event(struct mwifiex_private *priv, /* consumes ack_skb */ skb_complete_wifi_ack(ack_skb, !tx_status->status); } else { + /* Remove broadcast address which was added by driver */ + memmove(ack_skb->data + + sizeof(struct ieee80211_hdr_3addr) + + MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(u16), + ack_skb->data + + sizeof(struct ieee80211_hdr_3addr) + + MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(u16) + + ETH_ALEN, ack_skb->len - + (sizeof(struct ieee80211_hdr_3addr) + + MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(u16) + + ETH_ALEN)); + ack_skb->len = ack_skb->len - ETH_ALEN; + /* Remove driver's proprietary header including 2 bytes + * of packet length and pass actual management frame buffer + * to cfg80211. + */ cfg80211_mgmt_tx_status(&priv->wdev, tx_info->cookie, - ack_skb->data, ack_skb->len, + ack_skb->data + + MWIFIEX_MGMT_FRAME_HEADER_SIZE + + sizeof(u16), ack_skb->len - + (MWIFIEX_MGMT_FRAME_HEADER_SIZE + + sizeof(u16)), !tx_status->status, GFP_ATOMIC); dev_kfree_skb_any(ack_skb); } -- 2.20.1